The overlay(2) drivers were moved up in the list of storage drivers,
and are known to have problems if the backing filesystem does not
support d_type.
Commit 2e20e63da2a8a0ffbbb3f2146f87559e17f43046 added a warning,
which is logged in the daemon logs, however, many users do not
check those logs, and may overlook this warning.
This patch adds the same warning to the output of `docker info`
so that the warning is more easily found.
In addition, the output of warnings printed by `docker info` is
optimized, by;
- moving all warnings to the _end_ of the output, instead of
mixing them with the regular output
- wrapping the storage-driver warnings, so that they are more
easily readable
Example output with this patch applied
============================================
devicemapper using loopback devices:
...
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: devicemapper: usage of loopback devices is strongly discouraged for production use.
Use `--storage-opt dm.thinpooldev` to specify a custom block storage device.
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
overlay2 on xfs without d_type support;
...
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: overlay2: the backing xfs filesystem is formatted without d_type support, which leads to incorrect behavior.
Reformat the filesystem with ftype=1 to enable d_type support.
Running without d_type support will not be supported in future releases.
WARNING: bridge-nf-call-iptables is disabled
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
As is specified in 28018, it would be useful to know the manager's addresses
even in a worker node. This is especially useful when there are many
worker nodes in a big cluster.
The information is available in `info.Swarm.RemoteManagers`.
This fix add the information of `Manager Addresses` to the output
of `docker info`, to explicitly show it.
A test has been added for this fix.
This fix fixes 28018.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Add the following options to "swarm init" and "swarm update":
- --max-snapshots: Retain this many old Raft snapshots in addition
to the latest one
- --snapshot-interval: Number of log entries between Raft snapshots
These options already existed in SwarmKit and the Docker API but were
never exposed in the CLI. I'm adding them here to fix this oversight.
--max-snapshots may be useful for debugging purposes and more
conservative users who want to store rolling backups of old versions of
the Raft state.
--snapshot-interval is most useful for performance tuning. The default
value of 10000 may not be ideal for some setups.
There is also a LogEntriesForSlowFollowers option that is not exposed. I
decided not to expose it along with these others because I don't think
it's generally useful (and I'm not sure what I would call the CLI flag).
But if people want, I can expose it for the sake of completeness.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
This fix tries to address the issue raised in 24392 where
labels with duplicate keys exist in `docker info`, which
contradicts with the specifications in the docs.
The reason for duplicate keys is that labels are stored as
slice of strings in the format of `A=B` (and the input/output).
This fix tries to address this issue by checking conflict
labels when daemon started, and remove duplicate labels (K-V).
The existing `/info` API has not been changed.
An additional integration test has been added to cover the
changes in this fix.
This fix fixes 24392.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This fix tries to address the issue raised in 24958 where previously
`docker swarm init` will automatically fill in all the default value
(instead of letting swarmkit to handle the default).
This fix update the `swarm init` so that initial value are passed only
when a flag change has been detected.
This fix fixes 24958.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Brian Goff
yuexiao-wang
Sebastiaan van Stijn
allencloud
Sebastiaan van Stijn
Vincent Demeester
Antonio Murdaca
Yong Tang
Victor Vieux
Tonis Tiigi
Kenfe-Mickael Laventure
Aaron Lehmann
John Howard
Daniel Nephin